World

North America



What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Nearby Weather Stations - Folsom Distance
Sacramento Mather Airport 18.0 km
Auburn Airport 18.0 km
Lincoln Airport 26.4 km
Sacramento McClellan Airport 27.9 km
Nevada 36.0 km
Sacramento Executive Airport 39.5 km
Beale Air Force Base 41.5 km
Placerville Airport 44.3 km
Stockton Metropolitan Airport 45.6 km
Sacramento Intl. Airport 49.1 km
Yuba 52.7 km
Blue Canyon 59.8 km
Modesto 63.4 km
Oroville Airport 70.9 km
Davis Airport 71.3 km
Columbia Airport 89.5 km
Travis Air Force Base 90.3 km
Nut Tree Airport 90.8 km
Livermore Airport 93.1 km
Castle Airport 97.9 km
Chico Airport 101.4 km
South County Arpt Of Santa Clara County 104.5 km
Merced Regional Airport 105.8 km
Hollister Airport 106.5 km
Reid- Hillview Airport 107.3 km
Buchanan Field Airport 107.8 km
San Jose Intl. Airport 115.0 km
Truckee Tahoe Airport 119.0 km
Hayward Executive Airport 122.4 km
Watsonville Airport 122.9 km
Moffett Federal Airfield 123.9 km
Salinas Airport 126.3 km
Palo Alto Airport 128.4 km
Napa Airport 128.6 km
Lake Tahoe Airport 129.1 km
Oakland Intl. Airport 130.7 km
San Carlos Airport 139.7 km
Monterey Regional Airport 144.1 km
Red Bluff Airport 150.1 km
Madera Airport 150.1 km
San Francisco Intl. Airport 150.4 km
Reno Stead Airport 152.7 km
Reno 159.2 km
Marin 159.5 km
Carson City Airport 160.6 km
Petaluma Airport 163.8 km
Eddie Andreini Sr. Airfield 164.8 km
Redding Airport 167.0 km
Alturas Airport 175.6 km
Paso Robles Airport 180.8 km
Santa Rose Airport 185.7 km
Naval Air Station Lemoore 187.8 km
Fresno Yosemite Intl. Airport 192.2 km
Mount Shasta 202.3 km
San Luis Obispo County Regional Airport 204.0 km
Crater Lake 211.8 km
Hanford Airport 215.9 km
Lake County Airport 216.1 km
Trinity Center 219.4 km
Santa Maria Public Airport 228.4 km
Ukiah Airport 229.9 km
Weaverville 232.4 km
Vandenberg Space Force Base 234.2 km
Siskiyou 234.3 km
Visalia Airport 235.2 km
Lompoc Airport 240.4 km
Santa Ynez Airport 259.3 km
Mammoth Yosemite Airport 263.7 km
Porterville Airport 275.0 km
Naval Air Station Fallon Airport 275.8 km
Hawthorne Industrial Airport 280.1 km
Santa Barbara Airport 280.4 km
Medford Airport 290.1 km
Meadows Field Airport 295.3 km
Derby Field 297.8 km
Eastern Sierra Regional Airport 318.0 km
Oxnard Airport 330.9 km
Camarillo Airport 338.1 km
Naval Air Station Point Mugu 340.3 km
Sandberg Airport 345.9 km
Rohnerville Airport 350.8 km
Tehachapi Airport 359.4 km
Arcata 359.4 km
Van Nuys Airport 385.6 km
Mojave Air and Space Port Airport 388.4 km
Whiteman Airport 389.4 km
Crescent City 391.0 km
General William J. Fox Airfield 391.4 km
Winnemucca Airport 392.4 km
Santa Monica Airport 395.4 km
Burbank 397.3 km
Brookings Airport 405.1 km
Palmdale Regional Airport 407.3 km
Downtown Los Angeles 412.4 km
Edwards 417.6 km
Edwards Air Force Base 418.1 km
Naval Air Weapons Station China Lake 418.9 km
Rome State Airport 423.7 km
San Gabriel Valley Airport 428.6 km
Grey Butte Field Airport 447.3 km

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